Time and production recording apparatus



Jan. 30, 1951 w. LEATHERS TIME AND PRODUCTION RECORDING APPARATUS l0 Sheets-Sheet l Original Filed Feb` 2l, 1945 BY dwaal uuhan,

AGENT Jan. 30, 1951 w. LEATHERS 2,549,933

TIME AND PRODUCTION RECORDING APPARATUS original Filed Feb. 21, 194s 1o sheets-sheet 2 FIG. 3. 20

Wf1-2259 499 0650*'000'0479 208 0328B T5l 6220 O00 0141*'3740479 000 01208 1112206 14! 0141'0000l05 120 0120A T" 9:45 000 0000*!27'0105 000 0000 INVENTOR Ward L eaher.

BY dim-vd Kiowa...

Jan. 30, 1951 w. LEATHERS 2,540,033

TIME AND PRODUCTION RECORDING APPARATUS Original Filed Feb. 2l, 1945 lO Sheets-Sheet 3 BY etwa-vd. Q. '30min AGENT lO Sheets-Sheet 4 INVENTOR ll/rd Leaf/3era,

(uw R ummm AQENT Jan. 30, 1951 w. LEATHERS TIME AND PRODUCTION RECORDING APPARATUS Grgnal Filed Feb. 2l; 1945 Jan. 30, 1951 W. LEATHERS 2,540,033

TINE AND PRODUCTION RECORDING APPARATUS Original Filed Feb. 2l, 1945 lO Sheets-Sheet 5 INVENTOR lu'al. ca eri F IG. 7.

AGENT Jan. 30, 1951 w. LEATHERS 2,540,033

TIME AND PRODUCTION RECORDING APPARATUS Original Filed Feb. 2l, 1945 lO Sheets-Sheet 6 A N ai 4 v INVENTOR (D ll/qrdleafz era.

AGENT lO Sheets-Sheet 7 Jan. 30, 1951 w LEATHERS TIME AND PRODUCTION RECORDING ADPARATUS Original Filed Feb. 2l, 1945 Jan. 30, 1951 w. LEATHERS 2,540,033

TIME` AND PRODUCTION RECORDING APPARATUS Original Filed Feb. 2l, 1945 lO Sheeis-5heet 8 Jan. 30, 1951 w. LEATHERS 2,540,033

TINE AND PRODUCTION RECORDING APPARATUS Original Filed Feb. 2l, 1945 lO Sheets-Sheet 9 INVENTOR.

ll/anfll cnfl (its.

awe-4 2. gmk

AGENT Jan. 30, 1951 w. LEATHERS 2,540,033

TIME AND PRODUCTION RECORDING APPARATUS Original Filed Feb. 2l, 1945 10 Sheets-Sheet lO IDLER l PRGIJCT TIME l PROGRAM -INVENTOR ltrd snik e115.

BY Y ganso/L a Lamu AGENT Patented Jan. 30, 1951 TIME AND PRODUCTION RECORDING APPARATUS Ward Leathers, Brooklyn, N. Y., assignor to International Business Machines Corporation, New York. N. Y., a corporation of New York Original application February 21, 1945, Serial No. 579,098. Divided and this application February 21, 1941, Serial No. '130,088 f 3 Claims.l (Cl. 346-98) This application is a division of my copending application, Serial No. 579,098, led February 21, 1945, now Patent No. 2,469,655, issued May 10, 1949, for Counter Actuating and Resetting Mechanism for Recording Apparatus.

The improved recording apparatus comprising the present invention is primarily adapted for use in connection with factory or shop machines in preparing a complete and accurate record of the production output and the workmans time. The invention, however, is susceptible to modification and the same may be employed for a wide variety of uses. Broadly, however.the apparatus is designed for use in making records throughout a wide range of relationships existing between a lapsed time and speed of operation. Such operation may be the day-to-day operation of a machine for continuously producing a unitary product or a bulk product, and in such an instance the recording apparatus is adapted to render a daily history of the machine by preparing a printed record of the production and of the workmans time. Where a unitary 4 product is concerned, production output will be in terms oi units or pieces of work, and where a bulk product is concerned, the production output may be in terms oi' pounds or other units of weight, cubic feet or other units of measure, feet or other units of length. Apart from its use as a recording device for recording the history of operation of a machine, as described above, the same may be employed as a counter for making a printed record of a number or a value with respect to time, as for example, counting the number of vehicles which pass a given point during any selected period of time, the number of pedestrians entering upon a certain street corner or the like.

The invention has, purely for illustrative purposes, been designed for use in making a complete printed record of the history o! daily operation of a particular shop machine. In connection with such use, it is among the objects ofthe invention to provide a recording device which ,will make a printed record indicating the total number of pieces produced by the machine over any selected period of time, the time during which the machine is idle and the reason for such idleness, the identity of the operator of the machine, or both.

, Another object of the invention is to provide -a recording device of this character which will readily permit 'entering into the machine and printing on the printed record any desired extraneous data, apart from the data furnished by 2 the printing mechanism, as for example, data concerning the identity o! the set-up man, foreman, inspector or other persons who may, at various times during the day, stop at the machine.

A still further object of the invention is to provide a. relatively simple, economical recording device of this character which may be located in the vicinity of the machine or at a point remote from the machine. as for example, in the manag'ers omce or at a central station.

Still another object o! the invention is to provide a recording device which may, if desired, in addition to the recording of other data, as described above. record the total production time of the machine for each daily period and the total machine output.

Other objects and advantages of the invention will be set forth in detail subsequently. but in order that these may be more clearly understood, it is stated that, briey, the machine involves in its general organization a series of printing wheels or counters which are arranged in groups for cumulatively counting various items, periods of time or the like. These counters have asso'- ciated therewith a certain Geneva drive mechanism for actuating or periodically indexing the same. Means are provided for actuating these counters either at denite time intervals or according to machine production, and means are also provided whereby certain of these wheels may automatically be reset to zero, while manual means are provided whereby others of these groups of wheels may be reset to their zero readings.

Another object of the invention is to provide a recording device having associated therewith means for resetting certain groups of printing wheels automatically and for resetting other groups of printing wheels manually when desired, together with means for preventing over-carrying of the manual resetting operations to insure that at the completion ofsuch' resetting operations all of the wheels associated therewith will sired, the papermay be fed outwardly from the machine whereit is readily visible for inspection or whereby/1t may be allowed to accumulate, while at the same time be concealed within the machine.

Another object of the invention is to provide a novel type of actuating mechanism for recording machines of the general character set forth about wherein in place of the usual electric motor there is provided an extremely compact and eilicient electromagnetic drive for actuating the various counters, Geneva drive therefor, resetting mechanism, printing mechanism, paper and ribbon feed, etc.

Convenience of arrangement of parts, extreme compactness, which is conducive toward the provision of a machine of small proportions, ruggedness and durability are'further desirable features that have been borne in mind in the production and development of the present invenillustrated in the accompanying drawings, which disclose, by way of example, the principle of the invention and the best mode, which has been contemplated, of applying that principle.

In the drawings:

Fig. 1 is a front elevational view of a recording apparatus constructed in accordance with the principles of the present invention.

Fig. 2 is a fragmentary side 'elevational view of the machine showing a manual resetting control therefor.

Fig. 3 is a side elevational view of the machine.

Fig. 4 is a fragmentary plan view of a record sheet which has been operated upon by the machine.

Fig. 5 is a sectional view taken substantially along the line 5--5 of Fig. 1.

Fig. 6 is a sectional view taken substantially along the line 6 6 of Fig. l.

Fig. 7 isa front elevational view of a printing counter assembly employed in connection with the present invention showing its operative association in the machine.

Fig. 8 is a sectional view taken substantially along the line 8 8 of Fig. 6.

Fig. 9 is an enlarged detailed sectional view taken substantially along the line 9-9 of Fig. 6.

Fig. 10 is a sectional View taken substantially along the line Ill-I0 of Fig. 9.

Fig. 11 is a sectional view taken substantially along the line Ii-II of Fig. 9.

Fig. 12 is a sectional view taken substantially along the line I2-i2 of Fig. 9. Fig. 13 is a sectional view taken substantially along the line I3-I3 of Fig. 7.

Fig. 14 is a sectional view taken substantially along the line I4-I4 of Fig. 9.

Fig. 15 is a sectional view taken substantially along the line I5-i5 of Fig. 7.

Fig. 16 is a sectional view taken substantially along the line IS-IG of Fig. 15.

Fig. 17 is a sectional view taken substantially along the line IT-il of Fig. 8.

Fig. 18 is a sectional view taken substantially along'the line i8--I8 of Fig. 8.

Fig. 19 is a diagrammatic view showing the electrical input connections for the recording apparatus.

In all of the above described views like characters of reference are employed to designate like parts throughout.

The recording device is shown in itsentirety in-Flg. l. -This device may be attached to any type of machine or it may be u sed in any desired location, as for example, at a workmans bench where it is desired to secure accurate production and time records. sarily be installed directly at the scene of operations and, if` desired,it may be installed at a central station remotev from th particular machine with which itis associated. In such Before explaining-fully the detailsl of construc- I tion of the recording device, a brief description 0i' the various functions which it is adapted to perform will be given. In modern factory organization or shop practice it is of prime importance to keep accurate records of the number of pieces produced by any particular machine. The present recording device, therefore, includes a counting mechanism which may be actuated by impulses received from a circuit maker and breaker associated with the shop machine. Such circuit makers and breakers are well known in the art and are of various types and it is deemed unnecessary to illustrate or describe any specic circuit maker or breaker in the present instance. The present recording device includes a counting mechanism which is operated by means of impulses and which keeps an accurate-record of the running time of the `particular machine with which it is associated. The record of the running time of the machine is kept both as to total time, during whichthe machine operates over any given period, and a sub-total of the running time which may automatically be reset to its zero reading at any particular time.

A still further record which is kept in modern shop practice is a record of the idle time for any particular machine. The present recording device is also provided with a series of counters which will record such idle time both as to total ltime and as to sub-totals.

All of the counter mechanisms above referred to are of the printing type in that they are adapted to cooperate with a record sheet in printing their various records. Records of production time and of idle time of the machine are made with reference to actual clock time and, as a consequence, an additional series of counters. also operable upon reception of electrical impulses, are provided and are adapted to receive their impulses from a conventional type of clock mechanism.

In order that the identity` of any particular workman operating a particular machine or the reason for the idle time of the machine may be recorded, a single manually settable printing wheel is provided. This printing wheel, together with all of the previously mentioned automatically operable wheels, is adapted to render printed records on a record sheet in a readily understandable, legible, single line of type. Y

The'device need not necese that the present apparatus may eliminate the necessity of a time card system. The workmans time. as well as the history of operation of the machine itself, both as regards its production time, its idle time and the amount-of production, are all available in convenient form on the printed record sheet at the end of ny desired period of operation.

' Referring now to the drawings in detail and in particular to Figs. 1, 2 and 3, the apparatus involves in its general organization a base plate Il on which there is removably supported an outer machine casing or cover ii including a front wall I2, a rear wall il, side walls i6 and il respectively. and a top wall 2li. The front of thecasingisopenandisadaptedtobeclosed byp horizontally swinging door i! having a transparent window 22 formed therein through which there is visible certain indicia and certain printing and counting mechanism, the nature of which will be made clear presently. The operative instrumentalities of the machine are adapted to be enclosed within the casing or cover just described and certain manual control devices are positioned on the outside of the casing and have mechanical lead-in connections to the interior mechanismof the device, all in a manner subsequenty to be described.

An indica plate 23 (Figs. l and 6) is suitably positioned immediately behind the window 22 in the upper regions thereof and a backing plate 25 is positioned behindv 'the-window adjacent the lower regions thereof. The two plates justV referred to form therebetween an elongated horiaontal slot 21 through which there is visible the indicia which are formed on the individual print wheels 2l of a plurality of print wheel groups, of which there are seven in number, these groups being designated individually in their entirety at 2C, 2l, 30, 32, 34, 36 and 38, as shown in Figs. l, 7 and 9. The left-hand group of print wheels 2i are indicative of chronological time, the extreme left-hand print wheel representing days' of the week and a. m. and p. m. divisions thereof, the next adjacent print wheel representing hours of the day, and the next two adjacent print wheels being representative of the minutes during each hour. The group of print wheels 2B represents the number of minutes of time during which the particular machine, with which the recording device is associated, is in actual operation or production. The group of print wheels 30 represents an accumulation or totaling of previously encountered periods of production time. In other words, the group 28 contains three print wheels and indicates a sub-total of production time, while the group 30 contains four print wheels and indicates totals of production time. The first ot' these two groups has associated therewith means for automatically returning the print wheels to their zero reading after a certain predetermined period of time has elapsed and the latter group has associated therewith means whereby the print wheels may manually be reset to their zero reading.

The groups of print wheels 22 and 3l are similar in their design and operation to the groups 2l and 30 just described. The iirst of these latv ter two groups contains three print wheels that are representative of sub-totals of idle time and the second group is representative of total minutes of idle time.

The group of print wheels I6 and the group of print wheels 38 respectively are possessed of three and four print wheels. The group 36 represents sub-total production, while the group il represents total production. The former of these two groups is adapted to be automatically reset to zero simultaneously with the resetting of the groups 2l ,and 22, while the group 28 is adapted to be manually reset to zero simultaneously with the resetting of the groups Il and 34. A single print wheel Ill, shown at the extreme right-hand side of Fig. l, is capable of being manually set to various positions that are representative of special data, as for example, data relating to the identity of a particular workman, to the reason for machine idle time, or to any special circumstance that may be encountered during the machine operation.

In Fig. 4 there is shown a fragmentary portion of a record sheet which has been operated upon by the various groups of print wheels whose acf counting functions have been brieiiy outlined above. It is to be noted that the printing on this record sheet is -made a line at a time, and that the various lines of printing occur in groups of two lines each which are separated from each other by a space equivalent to the width of a single line of print. The rst line in each group, reading from the bottom of the sheet' upwardly, is printed at the commencement of a machine run and the upper line in the group is made at the end of the machine run. As shown in Fig. 4, in the lower line the data in the left-hand co1- umn shows that the machine went into operation on Tuesday at 9:45 a. m. A. m. time is distinguished from p. m. time by the presence or the absence of a small underline situatedl below the second letter ot the group of two letters which represent the day of the week'. The data just mentioned is eilected by the-rst group 26 of print wheels. The data in the next two columns represents sub-total production time and total production time and, since at the time of setting the'machine into operation no production time has existed previously, this data in the two columns shows 000 and 0000 respectively.

The data appearing in the next two columns which represents sub-total and total minutes of idle time shows 127 minutes and 105 minutes respectively. 'Ihis data is predicated upon the fact that the working day commences at 8:00 a. m. and, since the machine did not go into operation until 9:45 a. m., the total column will show 105 minutes of idle time existing before the machine began its operation. The presence of the number 127 in the sub-total column is explained by the fact that if 5:00 p. m. was the end of the previous working day, the foreman, inspector or other operator throwing the master switch to -shut off the recording apparatus did not do so until 5:22 p. m. or twenty-two minutes after the end of the working day. These additional twenty-two minutes thus accumulated in the machine remained therein overnight and showed up on the printed record at the time the machine was set into operation. The data in the next two columns which represents machine production appears as 000 and 0000, for obviously no production could be effected before the machine was set into operation.

The data appearing in the last column, which is in the form of the letter H, is of a symbolic nature and this letter may represent any desired data, as for example, the reason for any idle time that mayghave accrued in the idle time columns during the course of the day. It is to be noted that small size capital letters A and B appear at the right-hand side of the total running time column and sub-total idle time column respectively. These symbols may, if desired, designate the identity of the production machine to which the recording apparatus is applied. As

will appear presently, the various counters are mounted on a common shaft and may conveniently be removed for replacement purposes in the event the recording apparatus is applied to a different production machin'e. It is to be noted that since sub-total production time, sub-total idle time and sub-total production data are automatically reset to zero at the end of each printing operation, and since total production time, total idle time and total production data are 'manually set to zero at the proper time, the data in the six columns relating to production time, idle time and production will be reset to zero when the master switch is thrown at the end of each working day, although no print of this fact will be made on the record sheet. The difference in time expressed in minutes existing from the commencement of a working day until the commencement of machine operation will show up in the total column for idle time. This same number of minutes will be cumulatively entered into the sub-total column for idle time, together with the number of minutes existing between the end of the previous working day and the time at which the master switch was thrown.

Referring now to Figs. 6 and 8, a pair of side plates or standards 42 and 44 extend upwardly from the base plate I and serve to support therebetween a major portion of the operative internal machine instrumentalities'. A vertical transverse center plate or partition 46 is supported at its lower end on the base plate |0 and extends between the two side plates 42. and 44 medially thereof. The plate 46 serves to divide the lower region of the apparatus into a front paper storage compartment 50 and a rear solenoid-containingcompartment 52, the former compartment being adapted to enclose a roll 54 of blank record media and the latter' compartment serving to enclose a plurality of solenoids, the nature and function of which will be set forth presently. The previously described print wheel groups are operatively associated with a removable counter assembly 56 which is slidably received between the two side plates 42 and 44 and is adapted to be anchored in position therebetween by means of securing screws or the like 58 (s-:e Fig. A removable ribbon assembly 60, the nature of which will be described subsequently, is mounted on a bottom plate 6| and 1s adapted to be retained in position on the upper end of the side plates 42 and 44. nThe various print wheel groups are mounted upon a horizontal shaft 62 operatively associated with the removable counter assembly 56, and these print Wheels occupy positions inalignment adjacent the bottom of the assembly 56 and are designed for cooperation ,with a movable print bar 64, which is positioned immediately therebeneath and which is adapted to be moved from a lower inoperative position out of pressing engagement with the print wheels to an upper operative position. The manner in which the record media material issuing from the roll 54 is conducted over the upper surface of the print bar 64 zand the manner in which the ribbon associated with the ribbon assembly 80 is passed between the print wheels and the record media material will become apparent when the various separate features of the invention are singled out for individual description. The various print ciated therewith a counter mechanism 66 (see also Fig. 9) associated with the counter assembly 56 and whereby the individual print wheels 24 may be periodically advanced.

rl'he counter mechanism 66 is mounted upon a shaft 68 and in turn has associated therewith a plurality of reset gears 10, 1| and 'I3 (Figs. 6, 8 and )l mounted on a, shaft 12 extending between the side plates 42 and 44. This latter counter mechanism 66, together with the reset gear assembly, will also be described in detail as the separate features of the invention are set forth.

Referring now to Figs. 5 to 12 inclusive wherein the removable counter assembly 56 is best illustrated, this assembly includes a pair of end plates 60 and 82 which are in part maintained in spaced l relationship by means of an inverted U-shaped channel member 84 to wlnch the plates 80 and 82 are secured by means of screws or the like 86 (Figs. 6 and 7). When the counter assembly 56 is in position within the apparatus, the end plates and 82 are adapted to occupy the same planes as the two side plates 42 and 44. Toward this end, the plates 42 and 44 are recessed as at 88 to accommodate reception of the assembly 56 and are provided with offset portions which overlap the end plates 80 and 82 and through which offset portions the securing screws 58 are adapted to pass.

A plurality of rigid partition plates 84 are maintained in spaced relationship between the two end plates 80 and 82 by means of a plurality ci spacer bar assemblies, of which there are three in number. One of these assemblies includes a supporting rod 96 (Figs. 6, 7 and 13) on which there are mounted a plurality of spacer sleeves 98 that` extend between the various partition plates 94 and between the two end partition plates and the end plates 80 and 82, thus assisting in rendering the-partition plates and sideplates a rigid structure. Another spacer bar assembly includes a. supporting rod |00 and spacing sleeves |02, while still a third spacer bar assembly includes a supporting rod |04 and spacing sleeves |06. It will be seen, therefore, that the end plates 80 and 82 and the various partition plates 94 are all maintained in xed rigid relationship with respect to each other and are supported from each other along three longitudinal axes, as describe above.

Referring now to Figs. 6, 7, 9 to 13 inclusive, the

print wheel assemply which, as 'previously set forth is supported upon the shaft, 62, includes the various groups of print wheels 26 to .38 inelusive and each of these print wheels 24 has associated therewith a driving gear |08. Each print wheel 24 and its driving gear |08 is mounted for indepentent rotation upon the print wheel shaft E2 and is adapted to be driven or indexed from the counter mechanism 66 in a manner that will now be set forth. The right-hand print wheel 24 and its driving gear |08 of each of the groups 26 to 38 inclusive has associated therewith d 76 right-hand print wheel assembly 24. |08. l l0, connwmcdrivmgimmarfitnmpuve A thecounter mechanism andthissectionof the' counter. mechanism, acting through/a moreor leesI drive system.. operates to conduct carrylover operations to the ,remainingprint wheel :s

vgroup. v

Still referring t F18. 'l'. and'al's Yto F188. 9 to .8... iiesin its respective muon n s /totallgroups38, 34l and 38 may. be manually l2 linclusive,thegcounter mechanism includes a plurality of Geneva drive'gear groups correspondinnuxnber to theprint wheel groups 28 to 38 inclusive and similarly ted at 28" to 88' each group of three elements cooperating in a conventional manner with a respective Geneva carry-over gear |28. The various Geneva carryover gears are loosely dispod upon a Geneva gear supporting shaft |22 loosely supported in slots I|23 (see Fig. 6) formed in the various partitlonV plates 34. Each unit of each section of the counter mechanism 88 also includes a trans-` ier gear |24 by means of which motion is transferred to the various print wheel driving gears |88 to eil'ect cumulative numerical carry-over operations for printing purposes.

While the mechanism, structure and function of the counter mechanism 88fremains similar to conventional Geneva carry-over systems, the present invention includes a novel form of resetting mechanism for the print wheels 24 contained in the groups 38, 34 and 38 which are the production time total. idle time total, and production total groups. The production time subtotal, idle time sub-total and production subtotal groups 28, 32 and 3l respectively have provision for automatic resetting operations, as will be described subquently.

Phe counter units ||4 H8. ||8, |24, of each of the sections 30. 34' and 38' are loosely disposed upon sleeves |28 which are pinne-'iv as at |28 to the shaft 88. The counter units ||4, H8, ||8, |24 of the counter groups 28. 32KI and 38 are loosely disposed upon sleeves |30 which are not pinned to the shaft 88 and which may, consequently, turn loosely thereon so that manual resetting operations associated withthe other counter'groups do not affect these former groups.

'Referring now to. Figs. 10, ll and 12, each of the pairs of transfer gears and guide lock discs |24, ||4 in each of the assembly Units ||4, H8, ||8, |24, is provided with a pair of aligned openings |32, which openings communicate through slots |34 with the central opening of the unit. All of the sleeves |28 are formed with a longitudinally extending recess or slot |38 coextensive therewith and have a shoulder |38 associated thereturned throughout one complete 'revolution in the 'samedirection of rotation as that of the counter `units so that the shoulder y|38 will engage the projecting end of the spring |40 and bring all of the counter units to their zero positions. The

lvarious"sleeves Iso associated witntne subtomi inclusive. These llatter Geneva drive gear'v groups, with the .exception of a novel' form of' with. A loop spring |48 of a width equal to the or |30 may ride over the shoulder |38, into the recess |35 and travel unobstructed outwardly from the recess onto the smooth side of the sleeve. The counter u'nit is thus capable of continued intermittent turning-movement in the di,

units are also recessed longitudinally and the various elements |24, `|14 are'likewise formed' with openings |32 having springs |40 disposed therein. However, since the sleeves |30 are not pinned tothe shaft 88, manual resetting operations`are 'precluded as far as these assemblies are concerned. Means are provided, however, whereby these latter' sleeves are automatically rotated on the shaft 88, while the latter remains stationary in order lto effect automatic reset# ting operations. f

w The means for manually resetting the totals groups of print wheels 30,184 and 38 is best illustrated in Figs. 1,2, '7, 9 and 1.4. Referring now specifically to Figs. 2 and '1, a vmanual reset knob |42 is rotably mounted on the side wall i8 of the cover member and is provided with a shank |84 which projects through an aperture in the side wall. A spring member |48, which is riveted to the shank |84, is provided with an inturned finger |48 adapted to project through a slot |50 formed in a bifurcated actuator |52 mounted on the extreme left-hand end of the shaft 88, as viewed in Figs. 7 and 9. The reset knob |42 is provided with a finger piece |54 having a finger hole |58 formed therein for convenience of manipulation of the knob |42. By virtue of the fact that the sleeves |28 of the totals counter assemblies 30', 34', 38', are pinned to the shaft 88 as at |28 and by virtue of the spring and slot arrangement |48, |38, previously described, it will be seen that upon turning movement of the knob |42 in the direction indicated by the arrow in Fig. 2 through one full revolution, the various counter units ||4, H8, ||8, |24 will be reset and brought to positions of orientation wherein the print wheels 24 are all restored to their zero settings.

Referring now to Figs. 9 and 14, means are provided for preventing rotation of the knob |42 throughout an angle greater than that suihcient to restore the print wheels to their zero settings, thus over-running of the ,zero setting during resetting operations is precluded. Toward this end, the shaft 88 has mounted thereonV and pinned thereto as at |58 a sleeve |80 to which there is secured in any suitable manner,` as for example, by spot welding, a circular member |82 having formed thereon a stop finger |84'. Also secured to the sleeve is a second cam member |88 having a slot |88 formed in the periphery thereof. The sleeve |80, cams |82 and |88, and actuator |52 all comprise one unitary rigid structure which is mounted on and rotatable with the shaft 88. Pivotally secured to the end plate 80 is a stop pawl |10 which is spring-pressed as at |12 against a stop pin |14 and which is provided with a shoulder |18 designed for engagement with one edge of the stop finger |84 when the shaft 88 is in its position of zero setting for the print wheels 24. The pawl |10 is provided with a cam surface `|18 by means of which it is retracted when the stop finger |84 approaches the limit o! its movement in the direction indicated by the arrowlir Fig. 14.

'riveted as at lan to l the end plate 80 is a combined stop land'release member |82 having an abutment arm |84 formed thereon and normally positioned in thel path of movement of the stop finger |64, asshown in Fig. 14. ItV will be seen that upon rotation of the/- cam member |62, in the'direction of the arrow,

the stop finger |64 will ride over the cam surface t ment of the cam |62 in a counter-clockwise direction, as seen in Fig. 14, and consequent reverse Il" -f'l |22, as clearly shown in'Figs. 6, 7 and 9. It will' -be seen1that upon elevation of the retaining pawly 'L 88 of Fig.y 14,v the rock ,shaft 86 wili be turned about its axisin a clockwise direction, as viewedl' in Figs. 6 and`14, andthe elevating arms206 will" be caused to lengage the 'underneath surface bf= the Geneva gear shaft |22 to elevate the saniein the slots |23 and causethevarious Geneva gears I |20 to be lifted out ofjengagement with the re'- :of the shaft 68, will -be prevented. Reverse movemovement of the shaft 68, will be prevented by I virtue of the shoulder |16 formed on the pawl |10. Thus the cam |62 will be securely locked against continued rotation or against reverse rotation after resetting operations have been completed.

`Pivoted on a rock shaft |86 is a retaining pawl |88 having a retaining finger |80 formed adjacent its outer end and also having a cam roller 82 mounted on this latter end. The combined stop and release member |82 is provided with an ,roller |82.

with an actuating lever |88 having a. nger piece .200 formed thereon. A slot 202 formed in the arcuate cam surface |84 and an inclined straight cam surface |86, the former being designed for cooperation with the stop finger |64 and the latter being designed for cooperation with the cam 'I'he member |82 is further provided member |82 has extending thereinto a limit pin .i 204 which projects outwardly from the end plate 80. It will be seen, therefore, that the member ...|82 is movable from an initial position, wherein the linger |64 is securely held between the abut- .i ment arm |84 and shoulder |16 and wherein the finger |80 vof the retaining pawl |88 is disposed in .the slot |68, to an advanced position wherein the abutment arm |84 is withdrawn fr' ne path of movement of the stop linger |64 and wherein the retaining pawl |88 becomes elevated by virtue of the engagement of the inclined cam surface |86 with the cam roller |82. With the various parts in the respective positions just described, it will be seen that the cam member |62, and consequently the shaft 68, is free for clockwise rota- -total or sub-total print wheel groups could be effected without removing the Geneva carry-over gears |20 from operative engagement with the various counter assemblies. Provision is herein made for so removing the Geneva gears |20 and provision is further made during such removal for maintaining the individual Geneva gears properly oriented so that after al1 resetting operations have been completed the entire Geneva gear assembly may again be lowered into engagement with the counter assemblies in proper meshing condition. Toward this end, the shaft |86, which is supported between the end plates 80 and 82and which carries the retaining pawl |88, has mounted thereon a pair of arms 206, the outer ends oi' which underlie the Geneva shaft spective carry-over associated. I

A11 printing operations by, the print wheels 'n are conducted when these print wheels are in 'l definite positions' of registry with the print Ibar gears with which they are 64 and, consequently, during reset operations e each of the Geneva gears |20 will assume a definite position of orientation wherein one tooth thereof extends vertically, as shown in Fig. 6. In order to maintain. the various Geneva gears |20 properly oriented for restoration to their respective counter assemblies, the previously lmentioned inverted U-shaped channel member 84 serves to retain within the channel portion thereof an elongated resilientY retaining 'pad' 20,8` While this pad may be formed of any suitable material, the same is preferably formed of soft` rubber in order that the teeth of the Geneva gear may readily become embedded therein. The pad 208 directly overlies all of the Geneva gears |20 and the slightest elevation of the Geneva shaft |22 will bring immediate engagement between this pad and the Geneva teeth. Thus it will be seen that the Geneva gears are engaged before .they have cleared the counter wheel assemblies and by the time they finally do clear these counter wheel assemblies, they are so embedded `in the soft rubber pad 208 that there is no possibility of their becoming misaligned.

Referring now to Fig. 14, automatic resetting operations of the sub-total print wheel groups 28, 32 and 36 is effected at definite intervals of time by means of a rotary cam 2|0 mounted on the previously mentioned reset shaft 12. A description of the manner in which automatic reset operations take place from the shaft 12 will follow immediately. However, it is deemed pertinent at present to state that during such automatic resetting operations the retaining pawl |88 must be elevated to cause tilting movement of the shaft |86 and consequent elevation of the Geneva gear assembly as just described. Towardthis end, the retaining pawl |88 has mounted' thereon a cam roller 2|4 designed for engagement with the cam 2|0. The cam 2|0 is provided with two cam protuberances 2|6 arranged apart so that twice during each revolution of the shaft 12 the retaining member 88 will become elevated. During elevation of the retaining member |88 by the cam 2|0, the cam roller |82 will move out of engagement with the inclined cam surface |86 of the combined stop and release member |82 without disturbing the position of the latter.

Automatic resetting of the sub-total lprint wheel groups and counter assemblies is effected by virtue of the three reset gears 10, 1| and 13 (Fig. 8) which are mounted on the shaft 12. These three reset gears are designed for cooperation with respective pinions 2|8, 220 and 222 (Figs. '1 and 9) associated with the sub-total groups 36, `32 and 28 respectively and mounted on and rotatable with the sleeves |30 of these assemblies. The reset gears 10 and reset pinions 2|8, 220 and 222 constitute conventional reverse vGeneva gear reset mechanism and it is deemed the pinion, and consequently one revolution of. l the sleeve lll, will occur to reset al1 oi' the elements of Athe respective sub-total counter assembly and of its sub-total print wheel'group.

Referring now to Pigs. 8, 8 and 15, the toothed segment of the reset wheel 1I occurs on this latta` gear at a position which is 180 removed from the toothed segments provided on the reset gears Il and 12. Por this reason, simultaneout resetting operations are conducted on the production time sub-total and 'production subtotal counter mechanisms at a different point in the machine cycle from the single resetting operation of the idle time sub-total counter mechanism. Such dual resetting operation of the production time and production sub-total counter asembiy occurs during one-half revolution of the shaft 12, while such single resetting operation of the idle time sub-total counter mechanism occurs during the other half revolution ot the shaft 12. Rotation of the shaft 12 throughout one-half revolution'is conducted intermittently at predetermined times during the operation of the machine and immediately following printing operations.

The means for intermittently rotating the shaft 12 is best illustrated in Figs. 6, 8, 13, 17 and 18. 'Ihe compartment 52 serves to house a plurality of solenoids, of which there are four in number. designated at SO, ST, SPI and SP. 'I'he solenoid SO constitutes a main operating solenoid whose function is to periodically index the shaft 12 and thus rcause printing, resetting, paper advancing, ribbon feeding, Geneva gear elevating and other incidental functional machine operations. The solenoid S'I serves to periodically actuate the time group of print wheels 28. The solenoid SPI serves to actuate both the `production time print wheels and the idle time print wheels. but not simultaneously, mechanical means being provided whereby when one set of print wheels is being operated upon, the other set thereof remains inoperative. The solenoid SP serves to periodically index the production print wheels 3l.

The solenoid SO (Fig. 8) is suitably supported from the partition plate 4I near the bottom of the compartment 52 and is provided with a movable core 224 toV which there is pivotally connected one endrof a link 22S, the other end of which is pivotally connected to one end of a bell crank lever 228 which is spring-'biased as at 221. The bell crank lever 226 is pivoted as at 228 to an inclined bracket 228 (Fig. 18) mounted on the side plate 42 and the otherA end of this lever is pivotally connected tn a pawl armv 232, the upper end of which is spring-pressed as at 234' in such a manner that the pawl arm may co operate with a ratchet wheel 23B mounted on a horizontal shaft 238 extending between the two side plates 42 and 44. The ratchet wheel 238 also has associated therewith a holding pawl 231 to prevent reverse `movement thereof. The end of the shaft 228 opposite the ratchet wheel 238 (Fig. 8) has mounted thereon a gear 240 which meshes with a larger gear 242 secured the shaft 12. Thus it will be seen that upon periodic indexing of the solenoid SO motion will be transmitted through the link 225, bell crank lever 228.

(tthenumbenof teeth prov pawl 'Referring \now ron the shaft il. The, gear 248 is connected to ay cam .24| which is positioned on the .shaft ll alongside `a. similar cam 2,50.y This latter cam.'

however, -is pinned 'as at 252 'to the shaft 48y and consequently is rotatable therewith. The, cams 24|l and 258 a're provided `for the purpose,`

of causing an over-throw comb-,like member 2l4 to move into engagement with the various units of the counter mechanism t6 to prevent over" throwing thereof during either manual or automatic resetting operations; Accordingly, a square 8l and I2 (Fig. 6) and `has secured to one sidel thereof the comb-like member-2$4 which is provided with a series of spring fingers 260 designed for engagement with the various transfer gears |24 of the counter mechanism 88.

It is tol be noted that each of the transfer gears |24 has one tooth thereof removed as at 262 (see also Figs. 10 and 12), thus Aproviding in eifect a recess designed for reception'v therein of the extreme ends of the fingers 260 during resetting operations when the transfer gears are` so oriented as to cause the print wheels associated therewith to assume their zero indication or setting. I'he square rock shaft 256 has secured thereto a cam arm 264 (Figs. 7 and 13), the outer end of which is positioned immediately above the two cams 248 and 25B and is designed for camming engagement with either of them upon turning movement thereof. Since the cam 258 is pinned to the shaft 6l and rotates therewith and since the cam 248 is integrally formed with the gear 246, it will be seen that these two cams serve during both manual and automatic resetting operations to bring the comb-like member 254 into engagement with the transfer gears of the counter mechanism immediately after resetting operations have commenced. By virtue of the specific `design of the two cams 24l`and 250, the comb-like memberi254 is adapted to remain in engagement with the periphery of the various transfer gears until such time as resetting operations have been completed.

Since the gear 24 and cam 248 are loosely disposed on the shaft 68, they will remain stationary until such time as they are set into motion by virtue of their connection'to the gear 244 which, as was previously described, is operatively connected through a train of mechanical instrumentalities to the solenoid SO. The cam 248, therefore, becomes effective only during automatic resetting operations.

It has previously been explained how, during indexing operations of the print wheels 24, motion is transmitted directly to the rst or righthand print wheel in each group, as viewed in Fig. '1, and from thence up to the counter mechanism 66 and back again to the remaining print wheels in each group. The mechanism for periodically indexing the first or right-hand print wheel in the time group 26 and unit production groups 38 and 38 are best illustrated in Figs. 6, 8 and i3. These mechanisms are substantially identical and it is thought that a description of the mechanism which periodically indexes the print wheel of the time group 26 will sumce for a description of the other mechanism. Referring now to these ilsures, .each of the solenoids um ifa, fianet' rimessa, am.' m gears 242', 242, to the shaft 12 for `resetting 'op--v w rigs.' n, g 'and 1a," cuestan l. 12 carries near one end-thereof a gear 244 ,whichmeshes with a smaller gear 248 loosely mountedl l ST, andiSP is provided with a movable core 7 there are three Iinnumber and yalloi which arel f 218, the outer, end' of which is'slotted 'as' at 212 and receives thereinI the lower endof/an oscillatable operating lever 2 14 -wlich is pivotedas at 216 medilly ofvits ends a' bifurcalted bracket 218fsuitably mounted .uponits' respective soleno id. The upper 'end of. the lever 214 has pivotally connected thereto a link .288, the free end of' which is provided 'with'.a notch-"282 in its underneath side adapted to receive therein a horizontal strut 284 carried between the parallel arms 286* of a) swinging U-shaped cradle 288. As vshown in Fig; 8, four such cradles 288,lv have been provided, the extreme left-liand-cradlel serving to accommodate the time solenoid ST, the two central cradles serving to accommodate the production and idle time solenoid SPI and 'the extreme right-hand cradle serving` to accommodate the production solenoid SP. The arm 286 of the cradles 288 associated with tlie time print wheel groups 26 and the arms 283 associated, with the unit production groups 36 and 38l each has pivotally connected thereto adjacent dts lower end a spring-pressed pawl 298 designed ffor engagement with a respective indexing gear ||8 in the groups just mentioned. Each of the' cradles 288 is spring-pressed or biased as at 292 in such a manner as to cause the same to be moved to an advanced position, thus retracting the core 218 of its respective solenoid. The impulses received by the vario/us solenoids are of momentary duration and Aimmediately upon enerthe sub-total and total production time groups 32 and 34 is similar in each instance and one such mechanism is shown in Fig. 15. This mechanism specically is the one which serves to index the first print wheel in the total print wheel group 34 of the two production time groups 32, 34. The oscillatable operating lever 214 associated with the solenoid SPI has pivotally connected thereto at its upper end a link 215 similar to the link 288 of Fig. 13, the free end of which is provided with a notch 211 adapted to receive therein a horizontal strut 219 carried between the parallel arms 286 of the cradle 288 which is associated with this particular set of instrumentalities. The lower end of each arm 286 of this particular cradle and of the cradle associated with the sub-total and total idle time groups 28 and 38 carries a spring-pressed pawl ||2 designed for engagement with a respective indexing gear |8 associated with the print wheel groups 28, 38, 32 and 34. Each of the cradles just mentioned is spring-pressed or biased as at 28| in such a manner as to cause the same to be moved to its advanced position, thus advancing the core 218 of its respective solenoid. The indexing operation thus takes place in a manner similar to that described in connection with the indexing of the time and unit production print wheel groups.

The rear end of the pawl I I2 has formed thereon an extension 283 provided-with a cam surface 286 designed for engagement with a pin 281 (Fiss. 8 and 15) formed on a collar 289, of which mounted on 'the-.shaft 12 in the vicinity of their respective reset 'gears 18, 1| or 13, as the case may be. I'

'nie pins :ai associated with the operating 1ns'trumentalities for theproduction sub-total and ltotal production groups,34,"36 are' diametrically opposed to the pins 288. 281, which are vasso- 10 the sub-total 'and .total idle time print wheel groups'28; 38, such dia'metrical opposition being with respect to the shaft 12. Idle-time does not run concurrently with production vtime and vice versa and thus when idle tinieis in effect 'no production time impulses should be transmitted to the print-wheel groups 34 and 36. The reverse is true and during production time no impulses should be transmitted to the idle time print wheel groups 30 and 32. --Toward these ends, the pins 281 are designed to vfall into position at the end of resetting and printing operations against the cam surfaces 285 of the extensions 288 of the pawls ||2 alternately in pairs to maintain such pawls as are associated with the production time groups elevated during idle time operations and to maintain such pawls as are associated with theidle time groups elevated during production time operation. l

It is essential that should an impulse be re- 3o ceived by either of the indexing solenoids ST or SPI, as the case may be, during the p ower reset cycle, i. e., during rotation of the shaft 12 and reset gears 18, 1| and 13, the effect of this impulse be stored for`future use at the end of the power reset cycle, otherwise an impulse would be lost. It is also necessary that should an impulse be received by any one of the solenoids just mentioned during manual resetting operations when the shaft 12 is stationary, this impulse be stored for future use. Accordingly, two different kinds of impulse storing mechanism are provided. one for preventing an impulse from being effective during the power reset cycle when the shaft 12 is moving, and the other for preventing an impulse from being effective during manual resetting when the shaft 12 is stationary.

The means for preventing impulses from being effective during the power reset cycle is shown in Fig. l5. A plurality of ears 294 are struck downwardly from the bottom plate 6| of the ribbon assembly 68 and serve to support therebetween a horizontal shaft 296. A plurality of latch members 298 are pivotally mounted on the shaft 296 and have associated therewith springs 388, the 5 tendency of which is to normally bias the latch members 298 in a clockwise direction. Each latch member 298 includes a latch arm 382 adapted when the member is in Aits normal latching position to bear against the rock shaft |86 which acts as a limit stop. Each latch member also includes a cam arm 386 having a cam surface 388 formed thereon and designed for` engagement with a pair 'of studs 3|8 formed on one side of each of the two reset wheels 1| and 13. No latch member is provided for the reset'wheel 18 because of the fact that wheel 18 controls the resetting of production totals, and since resetting operations occur only at the time of starting the machine or at the time of stopping the` machine, in the former instance a machine product will not be turned out at the instant of'machine starting and in the latter instance a machine' product will not be turned out after the machine has stopped. The impulse storing mechanism under discussion is, therefore, applicable only to chronological `ciated with the operating instrumentalities for- 17 time impulses and to either production or idle time impulses and only two such mechanisms are employed. When the latch member 298 Ais in its normal position with the latch arm 302 bearing against the shaft |86, the extreme end of this latch member is positioned in the path of movement of the extreme upper end of the lever 214. Should, therefore, an impulse be received, the upper end of the lever 214 will trip beneath the latch arm 302 and assume a position behind the same so that after the impulse has been dissipated the lever 214 will be held retracted with its respective core 21| retracted within its solenoid. The impulse will thus be stored for future use in indexing the print wheel groups until such a time as the power cycle is completed and one or the other of the two studs 3io comes into engagement with the cam surface 344 to tilt the latch member 294 in a counterclockwise direction against the action of the spring 36|.

It is deemed pertinent at this point to state that the power cycle just referred to is initiated by one-half revolution of the shaft 12. The toothed sector of the production reset gear and the toothed sector of the production time subtotal reset gear 13 are disposed on their respective gears with the same identical degree of orientation, whereas the toothed sector of the idle time sub-total reset gear 1| is disposed on its gear at an angle of 180 from the two other sectors. Ihe reason for this is that resetting operations are conducted only at the end of a period of idle time or at the beginning of a period of production time. Since production time and idle time do not run concurrently, it is unnecessary to go through the motions of resetting idle time when no idle time is shown on the print wheels, and similarly, it is unnecessary to go through the motions of resetting production time when no production time is shown on the print wheels.

The means for storing impulses received by the various solenoids ST, SPI and SP that might be received during manual resetting operations is shown in Figs. 6 and 16. In this instance, in the case of the solenoid SP, a latch member 3|2 is mounted on a stud 291 and is provided with a latch arm 3|4 designed for cooperation with the lever 214 of the solenoid SP, in the same manner as the latch arms 302 previously described. The latch member 3|2 is spring-pressed as at 3|6 in such a manner that the same will be urged in a counter-clockwise direction as viewed in Fig. 6. 'I'he latch member 3|2 is provided with a forwardly extending linger 3|6 which underlies a lateral extension 320 formed on one of the arms 246 which controls the elevation of the Geneva gear assembly. Thus it will be seen that whenever the Geneva gear assembly is in its elevated position, the latch member 3|2 is released for latching purposes, and whenever this assembly is in its lowered position the latch arm 3|4 is held out of the path of movement of the upper end of the lever 214.

In the case of the solenoids ST and SPI, a dual latch member 3|| is provided. This latter member is generally of U -shaped design and is mounted on the shaft 296 and has associated therewith a single latch arm 3|5 adapted to underlie the lateral extension 320 associated with the arm 206. The latch member 3| is provided with two rearwardly extending latch arms 3|9, one being adapted to accommodate the lever 214 associated with the solenoid ST, and the other being adapted to accommodate the lever 214 associated with they ciencia ser.

18 The single print wheel 40, shown at the extreme right-hand sides of Figs. 1 and 7 and which has thereon the indicia representative of special data, I

such as data relating to the identity of a particular workman, the reason for machine idle time or the like, is adapted to be manually set to any desired position by means, of a finger knob 335 (Figs. 3 and 7) located on the outside of the machine casing and mounted on the side wall i6. The knob is provided with a shank 331 which projects through an aperture in the wall I6. A spring member 339, which is riveted to the shank 331, is provided with an inturned linger 34| adapted to project'through a slot 343 (see Fig. 9) formed in a bifurcated actuator 345 mounted on a hub 341 rotatably carried on the end of the shaft 68 and also. rotatably mounted in a bushing 349 projecting through the end plate 02. The hub 341 carries a gear 35| adapted to mesh with the driving gear |06 associated with the print wheel 40.

A circular face plate 353 mounted on the side wall |6 is provided with a plurality of indicia 355, corresponding to the indicia on the print wheel 40, and by means of which the operator may make his selection.

It is to be noted that the inturned finger 34| and bifurcated actuator 345 afford a means whereby the cover may be removed from or installed on the base plate |0 Without disturbing the neutral setting of the print Wheel 40 and whereby when the cover is removed this print wheel will automatically be restored to such a neutral setting or position.

Referring now to Figs. 5 and 6 wherein the means for actuating the print bar 64 is best illustrated, a pair of bell crank levers 350 are pivotally mounted as at 352 to the side plates 42 and 44, on the outside and near the bottom thereof. Each bell crank lever 350 is provided with a long arm' 354, the outer end of which carries a cam roller 356 designed for engagement with a cam 358 formed on a hub 359 mounted on the end of the shaft 236. Each lever 350 is also provided with a short arm 360, the outer end of which is pivotally connected by an eccentric adjusting connection 36| to the lower end of a toggle link 362. The upper end of the toggle link is pivotally connected as at 364 to an end of the print bar 64. The two cams 350 on the opposite ends of the shaft 238 are similarly oriented and thus it will be seen that as the high regions of these cams bear against the cam rollers 356, the two bell crank levers 350 will be moved in unison in such a manner as to cause alignment of the toggle link 362 and the short arm 360, thus forcing the print bar upwardly into engagement with the type on the print wheels 24. The print bar 64 carries the usual rubber platen pad 366. A pair of springs 366 serve to normally bias the levers 350 into cam engaging position. f

The ribbon feeding and reversing mechanism 60 which appears in part in Fig. 7 forms no part of the present invention and, as a consequence, the details thereof have been omitted. For an understanding of this feeding and reversing mechanism, reference may be had to the copending application of which this is a division. It is sutlicient for the present disclosure to state that the ribbon R is passed from one spool 400 to another spool 402 over a pair of upper ribbon guides 44| which are struck upwardly from the ribbon bottom plate 6| and beneath a pair of guide roller assemblies 443 suitably secured to the end plates 00 and 82. The ribbon thus leaves one of the ribbon spools and passes downwardly just outside one of the end plates 80 or 82, across the machine beneath the print Wheel assembly, and upwardly along the outside of the other end plate back to the other ribbon Spool.

In Figs. 5 and 6 the paper feed instrumentalities are illustrated. The record media is supplied in the form of the roll 54 which is wound in the conventional manner upon a spindle 452, the ends of which are loosely received in a pair of tapered inclined slots 454 formed in the end plates 80 and 82. The lower edge of each of the slots 454 is of such extent and is so inclined that when the ends of the spindle 452 are inserted therein the roll will, by gravity, assume a central position within the paper storage compartment 50. The upper edge of the partition 46 is provided with a plurality of forwardly curved fingers 456 which serve as paper guides, while a plurality of laterally extending flanges 458, also formed on the upper edge of the partition 46, serve as a support for a horizontal plate 460. A lower feed roller shaft 462 is rotatably supported between the two end plates 80 and 82 and is provided with a plurality of resilient feed rollers proper 464 at spaced points therealong. A spring-pressed upper idler feed roller 466 is biased against the feed rollers 464 and paper issuing from the roll 54 is adapted to pass over and around the rollers 464 and beneath the roller 466. An angular flange 468 extends between the two end plates 80 and 82 and is provided with a substantially horizontal flange portion 410 against which thereis adapted to bear coextensively the outer end of a tension plate 412. The tension plate 412 is provided with a plurality of apertures therein through which are received a plurality of shouldered lingers 414, by means of which the tension plate 412 is maintained in position on the plate 460. Paper issuing from the roll 54 and passing between the feed rollers 464, 466, also passes between the ange portion 410 and forward edge of the tension plate 412 and from thence over the print bar 64 and downwardly over the surface of the inclined backing plate 25. The base plate I is formed with an elongated slot 416 near the forward edge thereof through which the printed record media may pass to a point of storage. The base plate I0 is provided with a forwardly and downwardly inclined surface 418 which cooperates with a toothed tear-off strip 480 in providing a slot 482 through which the record media may pass to a region of discharge.

The mechanical means for advancing the paper in step-by-step fashion comprises a ratchet wheel 484 which is positioned on the feed roller shaft 462 outside of the end plate 82. A holding pawl 492 -to an operating lever 494, which in turn ispivoted as at 496 to the end plate 82. A coil spring 500 serves to normally maintain the lever 494 in its elevated position, while at the same time causing the pawl 490 to engage the periphery of the ratchet wheel 484. The lever 494 is provided with a cam roller 502 medially of its ends designed for engagement with a cam element 504 carried on the shaft 12 outside of the end plate y82. 'I'he cam 504 constitutes a paper feed indexing cam and is provided with a pair of relatively closely spaced cam protuberances 506 and 508 and a single removed cam protuberance I0. It will be seen that during the print- Cil ing portion of a machine cycle, the cam roller 502 will ride outwardly on the cam protuberances 506 and 508 in rapid succession to actuate the lever 494, driving pawl 490 and ratchet wheel 484 twice in succession and index the paper twice, thus rendering. a double space on the record media. When the cam roller 502 rides outwardly on the single cam protuberance 5I0, a single acuation of the record media advancing instrumentalities will occur. The reason for rst resorting to double spacing operations andvtfhereafter resorting to single spacing operations arises from the fact that after a particular machine has commenced its operation, the next printing material on the record media will be an accounting of machine idle time. After any such period of idle time when the machine is again set into operation, a record of the commencement of production time will be required. Thus, in Fig. 4, there is shown a grouping of the data into a series of two lines each, the rst or lower line representing the condition of the machine when the same went into production and the second or upper line representing the condition of the machine at the commencement of an idle period. To avoid confusion, the paper advancing means above described makes provision for double spacing after each period of production time and idle time has been recorded. The operating lever 494 is provided with an extension or handle 5I I which becomes available when the door I9 is swung open for manual indexing of the paper feeding instrumentalities.

The manner in which the cover II is made removable from the base plate I0 is shown in Figs. 5 and '1. Toward this end, a pair of latch plates 5I2 are secured to the inside of the side walls I6 and I8 of the cover Il and are provided with laterally extending flanges 5I4 adapted to be engaged by latching fingers 5l6 formed on a pair of latching levers 5I8 pivoted as at 520 to the end plates 80 and 82 near the bottom thereof. The latching levers 5I8 are provided with operating handles 522 which become available for manipulation when the door I9 is swung to its open position. It is to be noted that the cover II fits closely over the internal recording machine instrumentalities and that thus there is very little waste space within the cover.

A lamp L (Fig. 5) is suitably mounted on the end plate 82 and projects across the front of the machine within the cover Il for the purpose of illuminating the data appearing on the record media so that the latter may be readily readable through the window 22.

Referring now to Fig. 19, thecircuit diagram therein is illustrative of a, selected installation for the recording apparatus. It is 1o be distinctly understood that this installation is presented herewith purely for illustrative purposes and that numerous other installations are contemplated. In this installation the recording device which comprises the present invention is designated in its entirety at RD and is illustrated by means of a dotted line rectangle. The particular machine whose daily history it is adapted to record is shown at M. A time clock is shown at CL and may be of any conventional type which `is adapted to close an electric circuit at definite 

